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Finding the Fourth Proportional to 323,533.40, 485,300.10 and 292,040.60

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Solution

The fourth proportional to 323,533.40, 485,300.10 and 292,040.60 is: 438,060.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,533.40 : 485,300.10 = 292,040.60 : x
  2. Step 2: Convert to fraction form
    323,533.40/485,300.10 = 292,040.60/x
  3. Step 3: Cross multiply
    323,533.40x = 485,300.10 × 292,040.60
  4. Step 4: Simplify right side
    323,533.40x = 141,727,332,384.06
  5. Step 5: Solve for x
    x = 141,727,332,384.06/323,533.40
  6. Step 6: Final answer
    x = 438,060.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.